Questions on Algebra: Logarithm answered by real tutors!

Tutors Answer Your Questions about logarithm (FREE)

Question 903523: Evaluate the expression, reducing to simplest form.
logbase5 sqrt625=
Click here to see answer by josmiceli(19441)

Question 903876: Find the associated exponential decay or growth model.
Q = 2,500 when t = 0; half-life = 5

Click here to see answer by josgarithmetic(39799)

Question 903926: logbase12 18 + logbase12 8

Click here to see answer by Alan3354(69443)

Question 904270: What is the answer and work for ? Thank you!!
Click here to see answer by josgarithmetic(39799)

Question 905299: How do I solve the equation: $log_{2x}216=x$

Click here to see answer by Theo(13342)

Question 905390: Please how can you solve logariths with different bases

Click here to see answer by harpazo(655)

Question 905391: log(6x-3)base 3=1+log(x-3)base3)
Click here to see answer by harpazo(655)

Question 905643: evaluate the following
log4 16-6log4 4+log4 1
Click here to see answer by Alan3354(69443)

Question 905642: write as a single logarithm
in4m+in8m-log2m
Click here to see answer by Alan3354(69443)

Question 905858: what is log base q of square root q
Click here to see answer by Fombitz(32388)

Question 904251: Solve the equation.
Log(4p+1) + log(p) = log(3)
Click here to see answer by AlgebraLady88(44)

Question 907217: Express In 9.8 in terms of In 5 and In 7...
Click here to see answer by Alan3354(69443)

Question 907132: how would you express the equation in logarithmic form, to this problem e^x + 3 = 0.4
Click here to see answer by Fombitz(32388)

Question 906590: Solve the equation 5^2x+3+=0.008
Click here to see answer by Fombitz(32388)

Question 908370: Hi,
Solve the following equation for v
w=log4(2v+3) the 4 is located on the bottom right of log
Click here to see answer by ewatrrr(24785)

Question 908371: Hi,
solve the following equation for x
log2 x + log2(x-7)-3 the 2 is located at the bottom right of log
Click here to see answer by ewatrrr(24785)

Question 908471: logx+log(x-11)=log(6x)
Click here to see answer by MathLover1(20855)

Question 908739: Solve without using tables, the value of x if:
log_2⁡〖4^(x+1) 〗=4
2 log_10⁡x+3 log_10⁡5=2

Click here to see answer by Alan3354(69443)

Question 909166: Just here to check my answers if am I correct. Its gonna be a long question anyway
If Im correct no need for solutions, if wrong, well just show the solution and right answer.
Rules:
log answer in 6 decimal places(no round-off error, just copy)
Money( with 2 decimal place, round-off error)
The Villager of Kieler completes an exploratory study and find the current village tower will need a replacement in 10 years at a cost of $290,000. To finance this amount, the village board will at this time asses it's 958 homeowners with a one time surcharge and then invest this amount in a 10 year Cash Deposit paying 8.25% interest compounded semiannually.
a.How much will the village of Kieler need to invest at this time in this CD in order to raise the $290,000 in 10 years?
b.What amount should each homeowner pay as a surcharge?
Answers:
a.$129,210.26
b.$134.88
Click here to see answer by josgarithmetic(39799)

Question 909228: Solution to e^-x = 5^2x
Click here to see answer by swincher4391(1107)

Question 909263: Hi good day i'm having problems with a logarithmic equation:
log X^4 - log X^3 = log 5x - log 2x
using the laws of logarithms i have been able to change the equation into the form:
log X^4/X^3 = log 5X/2X
its from here i am stuck. I need to solve for 'X'.Can you explain in the simplest way how i can solve for x. your help would be greatly appreciated.
Click here to see answer by Alan3354(69443)

Question 909305: Hi goodnight can you solve for x:
log (x - 1) + log (x + 1) = 2 log (x + 2)
did it already got an answer of 5/4 ...can you just do it with working so i know i did it right

Click here to see answer by MathLover1(20855)

Question 909304: Hi goodnight, can you solve for x:
log 2X^2 + logX = log32 - logX
I did the question already just not sure of the answer please help
Click here to see answer by MathLover1(20855)

Question 909438: reduce in only one expresion
a) log3 x + log3 5y
Click here to see answer by MathLover1(20855)

Question 909438: reduce in only one expresion
a) log3 x + log3 5y
Click here to see answer by Theo(13342)

Question 909440: reduce in only one expresion
a)b) log3 2z − log3 x.

Click here to see answer by MathLover1(20855)

Question 909511: Solve x
ln(x+1) - ln(x-1) = 1/2
Click here to see answer by MathLover1(20855)

Question 909538: solve for x:
ln ( x/4.63) = 5.17

Click here to see answer by Alan3354(69443)

Question 909847: 3log(-3)

Click here to see answer by ewatrrr(24785)

Question 910007: ln x = 3/4
Click here to see answer by MathLover1(20855)

Question 910203: what values of x could not possibly be solutions of the following equation?
loga(4x-7)+loga(x^2+4)=0
Click here to see answer by josgarithmetic(39799)

Question 910202: find the domain and range of f(x)=2^1/x
Click here to see answer by Fombitz(32388)

Question 910336: A=P(1+r/n)^nt
Find t
Click here to see answer by Fombitz(32388)

Question 910593: Solve for x
Log x 4 + log x 2 = 3
Click here to see answer by stanbon(75887)

Question 910665: log x2 = -4:
Click here to see answer by Fombitz(32388)

Question 910920: solve for x:
7.83 = 2.91e^-1.7x
please please need help
Click here to see answer by solver91311(24713)

Question 910917: solve for x:
e^4x - 125 = 0
please please need help
Click here to see answer by lwsshak3(11628)

Question 910912: solve for x:
log_3 (x - 2) = 3 - log_3 (x + 4)
Click here to see answer by solver91311(24713)

Question 911007: evaluate
1.log81
2.log6
3.log12

Click here to see answer by MathLover1(20855)

Question 911137: 4 (x-10)-3 (2x+3)=

Click here to see answer by Fombitz(32388)

Question 911358: Solve 2log3x =1+log3(18-x)
Click here to see answer by MathLover1(20855)

Question 911756: f(x)=log down 1/3 (6x+12)
Click here to see answer by ichigo449(30)

Question 911974: Write the sum as the logarithm of a single number. log˯5 (7) +log˯5 (3)= ?
I know that this can be transferred from logarithm to an exponential equation of 5^x=7 and 5^x=3but I don't think figuring that out can get the answer, can you help?

Click here to see answer by MathLover1(20855)

Question 912074: soluttion x：34.66-2.52LN(X)-(31090/x)=0
I have inquired about this solution, but did not detail the process, ask to teach me how to start, thank you
Click here to see answer by Alan3354(69443)

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